Die-press.



No. 710,621'. Patented oct. 7. [902.

E. W. SILSBY.

mE PRESS.

(Application led July 15, 1901.)

2 sheets-snm I E. W. SILSBY.

DIE PRESS.

(Appuwian med July 15. 1901.)

1 i a m w ,h v W x w i mi C.. V No if M Y e H /w Vw* d M L@ fi@ miv v \\\\WMMHHJW\\\\\\\\\M w u 7,7 AEi. m w. Vm Hmmm N XN S 1 m Y kN W mi MM w y u ...hmm-: f gi.- J Y m No. 7|o,62|.

(No'Model.)

UNITED STATES PATENT OEEICE.

EUGENE \V. SILSBY, OF

LAGRANGE, ILLlNOlS.

SPECIFCATION forming part of Letters Patent No. 710,621, dated October 7, 1902.

Application filed July '15, 1901.

To (LZ/f whom, it may concern.:

3e it known that I, EUGENE W. SILSEY, a citizen of the United States, residing at Lagrange, in the county of Cook and State of` Illinois, have invented certain new and useful Improvements in Die-Presses, of which the following is a specification, reference being had to the accompanying drawings, forming a part thereof.

This invention is an improvement in diepresses; and it relates to that class of presses in which a die or dies carried by the reciprocating shaft are shifted in position by oscil-Y lation about the axis of the reciprocating shaft to bring such die or dies into line with different cooperating dies on the bed, toward and from which they are then reciprocated.

It consists in specific improvements in the means for controlling the oscillating movement, determinating the path of reciprocation, and locking and releasing the yielding element of the die thus oscillated, as set out in the claims.

Figure l is a side elevation of a die-press having my improvements, the supportingstand being shown in section. Fig. 2 is atop plan of the same. Fig. 3 is a section at the line 3 3 on Fig. 2. Fig. 4 is a bottom or inverted plan. Fig. 5 is a detail elevation of the device for controlling the oscillation.

Ais the stand upon which the press is supported.

B is the bed, having a shaft-bearing B' projecting transversely therefrom and in the usual arrangement projecting upward from the bed, the latter being horizontal.

C is the shaft by which the reciprocal-ion of the reciprocating die is produced. lt is extended through the shaftbearing B', projecting above and below the same and arranged for reciprocation therein, but not necessarily adapted for any other than reciprocating movement.

D is the die-carrying arm. It is carried on the upper end of the reciprocating shaft C, projecting off therefrom so as to overhang the bed and carry a die E, which may overhang and coperate with dies e e, mounted on the bed. The die-carrying arm D has a sleeve D', by which it is journaled on the shaft C', so as to be adapted to oscillate about the shaft, said sleeve extending also within the Serial No. 68,308. (No model.)

bearing B' for a purpose whichwill be explained.

The bearing-post B is expanded at the lower part to form a large interior chamber b, and said chamber is open at the bottom through the bed, except as to a tongue or lug B2 of the bed projecting from the main body at one side under said chamber, as best seen in Fig. et, ample space being left around said lug for the introduction into said chamber of the collar E, which is introduced before the shaft C is inserted and is secured onto the lower end of the sleeve D', which intrudes into the chamber from above. The shaft being afterward inserted from below through the whole length of the sleeve D' is stopped by the shoulder c, and the sleeve is retained by a capscrew c at the upper end, screwed into the end of the shaft, with its head overlapping the margin of the aperture in the arm D, through which the shaft is inserted. The collar F has the two longitudinal ribs E F', with their proximatesides parallel to each other and to the axis of the shaft C, and between them is a short rib or lug E2, terminating at a distance from the level of the lower end of the rib F', and thus forming two channels ff' between said middle lug and said ribs F E,respectively, and a cross-channelfz, connecting said .channels past the lower end of the middle rib or lug F2. The collar VF is secured to the lower end of the sleeve D by a set-screwfin a position such thatwhen the die E is registered with or directly overhangs one of the dies e on the bedoneV of the channels f' of the collar directly overhangs the post or stud G, which projects up rigidly from the lug B2 parallel with the shaft C, and the angular distance between the two centers of the channels ff is equal to the angular distance between corresponding points of the dies e e. Any convenient means may be employed for reciprocating the shaft and for normally sustaining the same at its elevated position upholding the `die-carrying arm with its die above the dies of the bed. As the preferred means I have shown a counterbalanced pedal M, on which the weight M isadequate to uphold the shaft and'die-carrying arm, the pedal being connected by a link M2 to the lower end of the reciprocating shaft C, the forward end of the pedal beingv depressed vby the foot of IOO the operator to bring the overhanging die down into cooperation with the dies on the .bed alternately or as the process to be performed may require. rlhe construction above described, involving the collar F and the stud G, located relatively to the dies, as indicated, is that when the die-carrying arm is'elevatedah that is, at the upper limit of its path of reciprocation-it may be oscillated through an anglek equal to the angle of separation of the two dies e e on the bed, being stopped at the limit of such oscillation by the encounter of the stud G with the inner faces of the ribs F/ F, respectively, the lug F2 being at that elevated position of the arm high enough to pass over the end of the stud G. The operator therefore swinging the die-carrying arm to bring the die E above one of the dies e Iinds the operating movement arrested at the proper point to permit the die-carrying arm to be depressed by pulling down the shaft C, the stud G passing up into one'of the channelsf and fitting within that channel so accurately as to guide the upper die E accurately into coperation with the lower die e, toward which it is beiugpulled downward. Upon the release of the pedal the reciprocating die will be restored to elevated position, and the operator may then swing the arm D in the opposite direction till the movement is again stopped by the encounter of the stud G with the opposite rib F', and at this position it may again be depressed and will be accurately guided in its descent by the stud G passing into the other channel. Thus without the necessity for critical attention on the part of the operator the reciprocating movement, which will bring the dies into coperation, is prevented except at the positions at which by the descent of the upper die they may cooperate accurately. If the operator attempts to depress the die-carrying arm by pressing the pedal while the upper die is at any position except one of the two positions at which the stud G may enter one or the other of the channels f,`th'e depressing movement will be prevented by the collision of the boss F2 with the end of the stud G. f

In very many of the operations in which it is desirable to use a press of this nature in order to bring the dies above successively or alternately into coperation with the dies below, the dies are composed of two parts, one fixed and the other yielding, to adapt them to perform the processes for which they are designed, and in one of the movementsthat is, incoperating with one of the lower diesthe upper die is required to act as rigid that is, without any yielding of the yielding member-whereas in cooperating with the other of the lower dies the yielding member is required to yield. In order to provide antomatically for permitting and preventing the yielding of the yielding member when it is advanced toward the lower dies,respectively, I provide a latch H, pivoted at 7L on the diecarrying arm D and adapted at the lower end to overhang and engage the upper edge of the yielding element E of the die E, and thus restrain it from yielding while such engagement continues. The latch has its upper end extended to overhang the arm D, and in such overhanging portion it has an oblique eye 0r cam-aperture h', and a cam-rod J is provided,

inserted down through the arm D, in whichr a suitable aperture is made, so that the lower end of the rod overhangs the upper end of the bearing B', the upper end ot' said cam-rod being bent in the form of a cam-hook J,which is inserted through the cani-aperture or eye 7L. The aperture d in the arm D, through which the cam-rod is inserted, is counterbored at its lower end to accommodate a spring K, coiled around the cam -rod and stopped at the lower end by a check-nut 7a on the rod, said spring thus operating to thrust the cam-rod downward to the limit permitted by its engagement in the cam-aperture or eye z, the cam-hook being adapted, as seen in Fig. 3, to engage over the portion H of the latch extension beyond the eye. Directly in line underneath the cam-rod .I at one of the positions at which the arm D may be depressed the bearing B is provided with an aperture b1@ of suitable size to permit the cam-rod with its check-nut and spring to pass down into the same when the arm is depressed at that position. When-this occurs,the latch will remain engaged with the yielding mem,- ber of the die and will hold it rigid with the other member and cause the die to act as a rigid die. At the other position at which the die-carrying arm may be depressed the bearing B is without any aperture and, on the contrary, is adapted to be encountered by the lower` end of the cam-rod' as the die-carrying arm is depressed, causing said cam-rod Vto be thrust up relatively in the die-carrying arm and in such movement to operate by its upper end as a cam on the overhanging extension of the latch, forcing the latch ont of engagement with the yielding member of the die and permitting it to yield when it encounters the lower die. It will be noted that the disengaging action of the cam-rod upon the latch is made to occur at the commencement of the upward thrusting movement of the rod, not merely releasing the latch from the over-hanging hook in which the cam-rod terminates, but engaging it positively by the convex heel of the hook and forcing the latch out of engagement. In the opposite Amovement when the rod is retracted by the spring K, however, it will be noted that the action of the cam-rod in bringing the latch back into latching position takes place only when the overhanging hook portion of the cam-rod encounters the portion H at the outer side of the eye practically at the limit of the rising movement of the die-carrying arm, as is nec- IOO l IIO essary, since the further movement of the cam-rod in the arm under the reaction ofthe spring is prevented when this engagement occurs.

I claiml. A die-press, comprising a fixed bed, having a shaft-bearing extending transversely with respect thereto; a shaft in said bearing adapted to be reciprocated therein; a die-oarrying arm projecting transversely from said shaft and carried thereby in its reciprocating movement and adapted to be oscillated about the shaft; means for reciprocating the shaft, and means for preventing the oscillation of the arm about the shaft except at a part of its path of reciprocation at which said arm is remote from the bed.

A die-press, comprising a fixed bed; a shaft reciprocatably jonrnaled therein transversely thereto; a diecarrying arm projecting transversely from the shaft carried therewith in the reciprocation of the latter and adapted to oscillate thereon; means limitingit in such oscillation at a part of the path of reciprocation at which the arm is remote from the bed, and means preventing the oscillation atV the remainder of said path.

3. A die-press comprising a fixed bed; a shaft reciprocatably journaled therein transversely thereto; a die-carrying arm at one side of the bed projecting transversely from the shaft carried therewith in the reciprocation of the latter and adapted to oscillate thereon; means permitting and limiting such oscillation at a portion of the path of reciprocation at which the arm is remote from the bed; means preventing the oscillation at the remainder of said path; and means at the opposite side of the bed for reciprocating the shaft.

4. A die-press comprising a fixed bed having ashaft-bearing projecting rigidly from it; a shaft extending through the bearing; a diecarrying arm projecting transversely therefrom at one side of the bed, in combination with means located at the opposite side of the bed for reciprocating the shaft; the die-can rying arm being adapted to be oscillated on the shaft, and means for permitting and limiting such oscillation at the part of the path of reciprocation at which the arm is remote from the bed and Yfor preventing it at the remainder of the path, said means consisting of two elements, one fixed with relation to the arm and one fixed with relation to the bed, one having two channels parallel with the path of reciprocation and a transverse passage connecting them; the other consisting of a projection adapted to pass into such channels and through the passage connecting them, the connecting-passage being at a position permitting the projection to pass through it when the arm is oscillated about the shaft at said remote position of said arm.

5. A die-press comprising a fixed bed; a shaft reciprocatably journaled therein transversely thereto; adie-carrying arm projecting from the shaft and carried therewith in the reciprocation of the latter' and adapted to be oscillated with respect to the shaft; means limiting it in such oscillation at the part of the path of reciprocation at which the arm is remote from the bed, and means guiding it in the reciprocating movement through the remainder of said path consisting of two ribs fixed With respect to said arm, parallel with the axis of the shaft; a boss between said parallel ribs, extending only part of the length of the latter; and a stud projecting from the bed parallel with the shaft adapted to take into the space between the boss and said ribs respectively as the arm reciprocates,

and to pass by the end of the boss from one rib to the other when the arm is at the portion of its path of reciprocation remote from the bed.

6. In a die-press, comprising a frame consisting of a bed and a bearing projecting rigidly therefrom, a shaft reciprocatablyjournaled in such bearing; a die-carrying arm projecting transversely from the shaft at one side of the bed and adapted to be oscillated about the shaft and to be carried with it in its reciprocation; the arm having a sleeve by which it is journaled on the shaft for purpose of oscillation, said sleeve being extended into the shaft-bearing; means on the frame pro jecting into the bearing and cooperating means on the sleeve within the bearing for limiting the oscillation of the die-carrying arm.

7. In a die-press, comprising a frame conv sisting of a bed and a bearing projecting rigidly therefrom, a shaft reciprocatablyjournaled in such bearing; a die-carrying arm projecting transversely from the shaft at one side of the same and adapted to be carried with the shaft in the reciprocation of the latter and to oscillate about the shaft; the arm having a sleeve by which it is journaled on the shaft for purpose of oscillation, said sleeve being extended into the shaft-bearing; means on the frame projecting into the bearing and cooperating means on the sleeve within the bearing for limiting the oscillation of the diecarrying arm; and means for preventing such oscillation except at the part of the path of reciprocation at which the arm is remote from the bed.

8. In a die-press, in combination with the reciprocating arm and the die carried thereby, the arm being movable transversely to the direction of its reciprocation to permit it to reciprocate in two parallel paths; the die carried by the head having a fixed and a yielding member; a latch mounted on the arm, adapted to engage the yielding member; a device mounted on the die-carrying arm tending to hold the latch thus engaged; said device being extended so as to encounter the bearing when the reciprocation occurs along one path, the bearing being so formed as not to be encountered at the reciprocation along the other path; whereby at the reciprocation along the first path the latch is disengaged to permit the yielding member of the die to yield, and at reciprocation along the other path the two members are latched unyieldingly together.

IOO

IIO

fifi- 9. In a die-press, in combination with a reciprocating arm and adie carried thereby, the arm being movable transversely toits path of reciprocation to permit it to reciprocate at two parallel paths; the die carried by the arm having a fixed and a yielding member; a latch adapted to engage the yielding member to prevent its yielding relatively to the fixed member; a device for operating such latch to engage it with and disengage it from the yielding member; a spring to hold said device normally in position to hold the latch engaged, said device being extended so as to encounter the bearing and be moved relatively to the arm contrary to the action of its spring to release the latch when Ithe reciprocation occurs along one path, the bearing being so formed as not to be encountered when the reciprocation occurs along the other path.

l0. In a die-press, in combination with the frame or standard, a reciprocating arm and means for operating it; a die carried by itl having al fixed and a yielding member, a latch to engage the yielding member preventing its yielding; said latch having an eye or cam-ap-- erture; a cam-rod operating through the eye to engage the latch with the die by movement in one direction, and disengage it therefrom by movement in the opposite direction; a spring tending to hold it in position to cause the latch to be engaged with the die; said cam-rod being extended so as to encounterthe standard when the reciprocation occurs along one path; the standard being formed so as not to be encountered when the reciprocation occurs along the other path.

In testimony whereof I have hereunto set my hand at Chicago, Illinois, in the presence of two witnesses, this 6th day of July, A. D. 1901.

E. IV. SILSBY.

lV'rtnesses:

CHAs. S. BURTON, ADN. H. BOWEN, Jr. 

